Changes in Force and Motion

A person pushes against a wall with 15N of force. The wall doesn't move. The wall exerts how much force on the student?

• 15N

• greater than 15N

• less than 15N

• 0N

Tags

NGSS.MS-PS2-1

What would cause the person on the left to change position?

• The force applied by the two people on the right would have to be greater than 200N.

• the force applied by the two people on the right would have to be less than 200 N.

• The person on the left would need to turn around

• It is impossible

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

In what direction with the box move?

• right

• left

• up

• down

Tags

NGSS.MS-PS2-2

What is the net force acting on the box?

• 5N

• 25N

• 15N

• 0N

Tags

NGSS.MS-PS2-2

There is a book sitting at rest on a chair. Which of the following is true?

• There are many forces acting on the book, but they balance each other out

• The book exerts no force on the chair

• The chair exerts no force on the book

• all of these

Tags

NGSS.MS-PS2-1

Three people can move a piano easier than two people. This demonstrates which of Newton's Laws of Motion?

• Newton's 1st Law (Inertia)

• Newton's 2nd Law (F= m x a)

• Newton's 3rd Law (Action Forces & Reaction Forces)

Tags

NGSS.MS-PS2-2

What is the speed of an object in a given direction?

• force

• speed

• motion

• velocity

A push or pull that can change the motion of an object

• motion

• force

• direction

• mass

Tags

NGSS.MS-PS2-2

The sum of all the forces acting on an object

• motion

• force

• net force

• mass

Tags

NGSS.MS-PS2-2

A change in motion caused by an unbalanced force acting on an object; can include increasing speed, decreasing speed, or changing direction

• speed

• motion

• velocity

• acceleration

Tags

NGSS.MS-PS2-2